package com.cn.hu.entity;

import java.sql.Timestamp;
import java.util.List;
import org.hibernate.LockOptions;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import static org.hibernate.criterion.Example.create;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.transaction.annotation.Transactional;

/**
 * A data access object (DAO) providing persistence and search support for
 * Customer entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see com.cn.hu.entity.Customer
 * @author MyEclipse Persistence Tools
 */
@Transactional
public class CustomerDAO {
	private static final Logger log = LoggerFactory
			.getLogger(CustomerDAO.class);
	// property constants
	public static final String NAME = "name";
	public static final String TEL = "tel";
	public static final String MOBILE = "mobile";
	public static final String ADDRESS = "address";
	public static final String EMAIL = "email";
	public static final String STATUS = "status";
	public static final String BAK = "bak";

	private SessionFactory sessionFactory;

	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	private Session getCurrentSession() {
		return sessionFactory.getCurrentSession();
	}

	protected void initDao() {
		// do nothing
	}

	public void save(Customer transientInstance) {
		log.debug("saving Customer instance");
		try {
			getCurrentSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Customer persistentInstance) {
		log.debug("deleting Customer instance");
		try {
			getCurrentSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Customer findById(java.lang.Integer id) {
		log.debug("getting Customer instance with id: " + id);
		try {
			Customer instance = (Customer) getCurrentSession().get(
					"com.cn.hu.entity.Customer", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List<Customer> findByExample(Customer instance) {
		log.debug("finding Customer instance by example");
		try {
			List<Customer> results = (List<Customer>) getCurrentSession()
					.createCriteria("com.cn.hu.entity.Customer")
					.add(create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Customer instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Customer as model where model."
					+ propertyName + "= ?";
			Query queryObject = getCurrentSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List<Customer> findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List<Customer> findByTel(Object tel) {
		return findByProperty(TEL, tel);
	}

	public List<Customer> findByMobile(Object mobile) {
		return findByProperty(MOBILE, mobile);
	}

	public List<Customer> findByAddress(Object address) {
		return findByProperty(ADDRESS, address);
	}

	public List<Customer> findByEmail(Object email) {
		return findByProperty(EMAIL, email);
	}

	public List<Customer> findByStatus(Object status) {
		return findByProperty(STATUS, status);
	}

	public List<Customer> findByBak(Object bak) {
		return findByProperty(BAK, bak);
	}

	public List findAll() {
		log.debug("finding all Customer instances");
		try {
			String queryString = "from Customer";
			Query queryObject = getCurrentSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Customer merge(Customer detachedInstance) {
		log.debug("merging Customer instance");
		try {
			Customer result = (Customer) getCurrentSession().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Customer instance) {
		log.debug("attaching dirty Customer instance");
		try {
			getCurrentSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Customer instance) {
		log.debug("attaching clean Customer instance");
		try {
			getCurrentSession().buildLockRequest(LockOptions.NONE).lock(
					instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static CustomerDAO getFromApplicationContext(ApplicationContext ctx) {
		return (CustomerDAO) ctx.getBean("CustomerDAO");
	}
}